flash.net.Socket complete implementation
Merge pull request #69 from pperidont/master

[MotionTwin] flash.net.Socket implementation
Fixes to flash.net.Socket
Added RIGHT_CLICK and MIDDLE_CLICK support, and I removed charCode values now that SDL2 backend supplies them
MouseOver fix
Guard call to hide system buttons (based on OS version)
Improve behavior of Android keyboard
Update OpenAL, should run as a single task (Android)
Add UncaughtErrorEvents
Merge project code
Add openfl-native-dev
openfl-native-libs instead of openfl-native-dev
Improve rebuild script
Update for hxlibc
Update Travis CI script
Install hxlibc from GIT
CI should use hxtools, not openfl-tools
Fix minor warning messages
Fix minor warning
Fix BlackBerry compile